ASTROSAT CZTI

Data Quality Report

Orbit 48131

Creation date: 2024-08-22T09:14:52.953474
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1T05_223T01_9000006402_48131cztM0_level2.fits modeM0/AS1T05_223T01_9000006402_48131cztM0_level2_quad_clean.evt
Size (bytes)370,817,28080,087,040
Size353.6 MB 76.4 MB
Events in quadrant A6,517,551662,526
Events in quadrant B1,066,17040,527
Events in quadrant C2,785,850666,397
Events in quadrant D2,856,413610,159

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0235442
B066572
C0131502
D0133222

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63353946.219416%
B63356335100.000000%
C6335420.662983%
D6335410.647198%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 6720 6336 17 17 0.25% 0.27%
B 6718 6325 0 0 0.00% 0.00%
C 6719 6334 19 19 0.28% 0.30%
D 6719 6334 14 14 0.21% 0.22%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 10 83 3733687 26292.67 680 666 142.0
A 0 31 68082 474.83 680 666 142.0
A 13 248 45531 316.0 680 666 142.0
B 2 177 875494 81402.95 43 42 10.8
B 4 21 11202 1037.7 43 42 10.8
B 0 186 2269 207.08 43 42 10.8
C 0 207 76166 471.42 684 685 160.1
C 12 2 13248 78.46 684 685 160.1
C 10 187 9574 55.52 684 685 160.1
D 2 37 147529 852.73 684 659 172.2
D 2 234 30935 175.78 684 659 172.2
D 2 233 29523 167.59 684 659 172.2

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter